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Physiology Quiz -The Na+/K+ ATPase - Part 3

The Na+/K+ ATPase (or simply Na+ pump) is a ubiquitous membrane transport protein found in all body cell types. Test your basic knowledge of the Na+/K+ ATPase by taking this simple quiz.

(1) The Na+/K+ ATPase is a ubiquitous protein (i.e., it is found in all body cell types).

True

False

(2) The Na+/K+ ATPase is an integral membrane protein.

True

False

(3) The Na+/K+ ATPase is responsible for maintaining a:

(A) low intracellular Na+ concentration

(B) high intracellular K+ concentration

(C) high extracellular Na+ concentration

(D) low extracellular K+ concentration

(4) The Na+/K+ ATPase is a:

(A) F-type ATPase

(B) P-type ATPase

(C) V-type ATPase

(5) A fully functional Na+/K+ ATPase requires the following:

(A) A main catalytic α subunit

(B) An accessory β subunit

(C) In some tissues, an accessory protein belonging to the FXYD family of proteins